There are a number of factors to consider when choosing a new pick: for one, the shape, which affects the surface area of the plec and how easy it is to transition between the strings. Strummers and acoustic players may prefer a larger pick, while jazz and metal guitarists tend to prefer smaller, pointed designs.
The gauge of a pick refers to its thickness; thinner picks are better suited to rhythm playing, while alternate and bass picking can be easier with thicker plecs.
https://www.musicradar.com/news/the-10-best-guitar-picks-our-pick-of-the-best-plectrums
So no sharkfin's on the list... ? But I have number's 1, 3 ,4 & 7 in my stash. Have heard very good things about the Ernie Ball Prodigy (number 8), I'm told the bevelled edges really make a difference!
Raru have two specials :
1. 10 picks for R99: https://raru.co.za/list/19212-buy-10-plectrums-for-r99
2. 6 Prodigy Picks for R125 (R30/ea...they better be good!): https://raru.co.za/list/25378-buy-6-ernie-ball-prodigy-picks-for-r125